Travel-Time Errors Due To Data Gaps

Details Travel-Time Errors Due To Data Gaps Travel-Time Errors Due To Data Gaps

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..416..135b&link_type=abstract

Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 ASP Conference Series, Vol. 416, proceedings

Astronomy and Astrophysics

Astronomy

Scientific paper

Time-distance measurements of wave packet travel times can be used to determine various properties of the plasma through which the p modes propagate, however, missing data can introduce significant errors in the travel time measurements. We find that the magnitude of the error depends on the amount of missing data, the temporal position of the data gaps, and the travel distance, but not on the continuity of data gaps. Further, apodizing the data gaps or linearly filling the gaps fails to reduce the errors.

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